[½»Á÷] Éó¸åÒâ¼û£¬ºÃ×Ðϸ°¡£¬¸Ð¾õ¶¼ÊÇÓïÑÔÎÊÌ⣬ÕâЩ±ê¼ÇʲôÒâ˼£¿ ÒÑÓÐ12È˲ÎÓë

µÚһƪSCI£¬ÖªµÀ×Ô¼ºÓ¢ÎÄˮƽÓÐÏÞ£¬Óï·¨ÎÊÌâ¿ÉÄÜ»á±È½Ï¶à£¬ÆäʵÊDzο¼ÒÑ·¢±íÂÛÎÄдµÄ£¬Í¬ÑùµÄ¶«Î÷ͬÑùµÄд·¨£¬È·±»´òÁ˺öà±ê¼Ç¡£Á½¸öÉó¸åÈËÒâ¼û£¬ÆäÖÐÒ»¸öÉó¸åÈËÖ±½ÓÔÚÊÖ¸åÉÏдµÄ£¬Ð´µÄºÜ×Ðϸ£¬µ«ÊÇÓÉÓÚµÚÒ»´Î¿´µ½ÕâÖÖÉó¸åÒâ¼û£¬²»´óÃ÷°×£¬Ï£Íû´ó¼ÒÖ¸µãһϣ¬1¡¢Èý½ÇÐαíʾҪ¼Ó¿Õ¸ñÂð£¿2¡¢¿Õ¸ñ±ê¼ÇÊÇʲôÒâ˼£¿3¡¢¸ßÁÁÊDZíʾ±íÊö²»ºÏÊÊ£¿4¡¢»­ºáÏß±íʾҪɾ³ýÖØÐÂ×éÖ¯ÓïÑÔ£¿¡£ Éó¸åÈËÒâ¼ûÈçÏ£º ÌùͼÊÇÉó¸åÈË2¸øµÄ²¿·ÖÊÖ¸å Reviewer 1   - This paper seeks to use eddy current testing as a non-destructive testing technique for quantitatively evaluating the degradation in cast duplex stainless steels as a result of relatively low temperature thermal aging. Therefore the authors compared the eddy current testing as a function of aging time at 380C up to 9000 hours with room temperature Charpy impact testing and Vicker¡¯s microhardness testing at the same times and temperature. They found that eddy current testing correlates well with both room temperature Charpy impact energy and Vicker¡¯s microhardness ¨C the latter in an inverse manner. This paper deserves eventual acceptance for publication, but there are a few suggested changes that should be implemented both to improve the readability and the conclusions of the paper. 1. In the introduction, more thoroughly discuss eddy current testing: the physics behind it; how it is implemented in service; etc. Many readers may not be familiar with this technique. 2. There are several grammar and proofreading errors that need to be corrected throughout the paper. Please go through and carefully correct these; get a second set of eyes to help with these mistakes. Often, it is the comma vs. semicolon usage, along with usage of run-on sentences (I understand English is a second language). 3. If possible, in the materials section, please tell how the material was cast (starting temperature, cooling rate, size of pipe that samples were cut from, etc.). 4. What is the volume fraction of ferrite as a function of aging time? There is evidence that ferrite content may change during aging even at these relatively low aging temperature and times. This may highlight why there is a difference in the rate of change in ferrite hardness and Charpy impact energy. 5. Can eddy current testing distinguish between spinodally decomposed regions and G-phase precipitates? The literature has shown that there is a multi-stage process in which G-phase precipitates on the alpha/ alpha-prime interface. This could also highlight the reason for the change in slope in both microhardness and impact energy from 0-~2000 hours and ~2000-9000 hours. You actually mention this but never discuss why it is the case: ¡°Fig.8 shows the changes of amplitude and ferrite Vickers microhardness with aging time. The amplitude varies inversely to the behavior of ferrite microhardness. The change can be divided into two stages, the first stage range from 0 to 2000h aging time and second stage range from 2000h to 9000h. Microhardness increases rapidly in the first stage and then the rate of increase slows down in the second stage. However, the amplitude decreases rapidly at the beginning and then decreases gradually.¡± 6. Expansion of the discussion and conclusions in general would also be helpful. Try going into greater detail. -Reviewer 2   - This work is an attempt to correlate the mechanical property changes of thermally aged ferrite-austenite duplex SSs with eddy current measurements.  A centrifugally cast SSs was thermally aged and tested for Charpy impact energy, microhardness, and eddy current.  There appears to be good correlations between eddy current and Charpy impact energy, and eddy current and microhardness.  The technical content of the paper is of interest for the JNM readers.  However, the clarity of the paper needs to be improved.  There are some grammar mistakes and technically inaccuracies in the current manuscript. Also, it is highly desirable that the correlations obtained in this paper can be validated with additional data from literature or from the authors¡¯ lab.  I'd recommend some changes before publication.  Specific comments and suggestions are provided in the attached PDF. Have questions or need assistance? For further assistance, please visit our Customer Support site. Here you can search for solutions on a range of topics, find answers to frequently asked questions, and learn more about EVISE® via interactive tutorials. You can also talk 24/5 to our customer support team by phone and 24/7 by live chat and email. One or more files have been made available to you as part of this decision. You can access them by clicking on the link(s) below. JNM_2017_1118_Original_V0-review.pdf ------------------------------------------------------------- Copyright © 2017 Elsevier B.V. | Privacy Policy Elsevier B.V., Radarweg 29, 1043 NX Amsterdam, The Netherlands, Reg. No. 33156677. Éó¸åÒâ¼û.JPG

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